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Business Banking Team

To grow your company, you need access to the right capital and the right advice. Our team of experienced Business Bankers works closely with business owners on everything from getting a loan to purchase real estate or equipment, to optimizing cash flow, to evaluating the potential of new opportunities. We're local experts who base our success solely on yours.

Champions of Local Businesses

Meet Our Business Bankers

Brett Engelking

Senior Vice President – Business Banking Manager
301 N. Rochester St., Mukwonago

Brett came to Citizens Bank in 2011. Prior to his career in banking, Brett worked for 20 years in land use, development, public planning, and zoning. His understanding of the many aspects of real estate gives his clients a unique edge when completing real estate transactions. Brett is a graduate of the University of Wisconsin – Madison as well as the Graduate School of Banking at the University of Wisconsin – Madison. He currently serves on the Board of Directors for EasterSeals Southeast Wisconsin.

Ryan Lilly

First Vice President – Business Banker
301 N. Rochester St., Mukwonago

Ryan joined Citizens Bank in 2015 with nearly 10 years of banking experience. He has developed a customer-first philosophy that guides him to provide the best experience possible for each of his clients, while helping them find and unlock the keys to their growth. Ryan is a graduate of the University of Wisconsin – Whitewater. He is a member of the Rotary Club of Mukwonago and a co-chair of the Mukwonago Area Chamber of Commerce Golf Outing Committee.

Brian Mangold

Vice President – Business Banker
5450 S. Moorland Rd., New Berlin

Citizens Bank welcomed Brian and his 20 years of banking and commercial lending experience to the team in 2020. Brian believes that working hands-on with his clients is the key to forming close relationships, which allows him to tailor-fit solutions for both short-term and long-term success. A graduate of Marquette University, he stays active in the community by volunteering with a number of local organizations.

Eric Olson

Assistant Vice President – Business Banker
2109 Corporate Dr., Waukesha

Citizens Bank welcomed Eric and his near decade of banking experience to the team in 2023. Having worked firsthand with many aspects of commercial lending, he enjoys working with our team to make sure that the lending process is completed in a thorough and sensible manner. This allows Eric to fit customers with products that are best suited to propel them towards their long-term goals. A UW-Whitewater graduate and southeast Wisconsin native, Eric is always excited to help businesses reinvest into our communities.

John Rinderle

Vice President – Business Banker
301 N. Rochester St., Mukwonago

John came to Citizens Bank in 2006 and has over 30 years of banking experience. Over the years, he has been told repeatedly by his clients that he utilizes both a "Think Outside The Box" and "How Can We Say Yes" approach to business lending. This approach has led to success for many of John’s clients, both large and small. John is a graduate of the University of Wisconsin – Parkside and a member of CARW (Commercial Association of REALTORS®).

Lea Sperle

Vice President – Business Banker
2541A E. Main St., East Troy

Lea has been with Citizens Bank since 1999. During her career, Lea has helped individuals and businesses with all aspects of their finances – giving her knowledge that is an invaluable asset to the clients she serves today. She excels at risk management and business development strategies, which she delivers with top-notch customer service. Lea, a graduate of the University of Wisconsin – Milwaukee, is active in many community events.

Ryan Dahms

Assistant Vice President - Business Banker
S90W35680 County Road NN, Eagle

Ryan joined Citizens Bank in 2018 after graduating from the University of Wisconsin – Whitewater with a degree in finance. He always has a “customer comes first” mentality and enjoys working alongside local businesses to help them succeed. With his educational experience, he excels at analyzing businesses and building relationships. Ryan enjoys being part of the community and looks forward to new, local opportunities.